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The BLACKBIRD seat foam +15mm (manufacturer reference 4214) is a simple yet effective cartridge for motocross riders looking to modify the seating of their machine. Made from high-quality closed-cell expanded polyurethane, it does not absorb water and retains its technical characteristics over time. Designed with the help of world championship teams, this foam remains perfectly interchangeable with original seats and increases the seat height by 15 mm (1.5 cm).
Material: closed-cell expanded polyurethane — water-resistant and durable.
Height: +15 mm compared to the stock foam.
Compatibility: direct fit to replace the original foam without major modifications.
Designed in collaboration: developed with high-level championship teams.
Ideal for training and motocross competitions, this foam allows you to adjust the seating according to your riding position and preferences. Check compatibility with your seat base before installation.
Common compatibilities: YAMAHA YZ 250 (2026), YAMAHA YZ 125 (2026), YAMAHA YZ 250 (CG23, 2023).
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